WO2010040042A2 - Compression sensor gasket and method of construction - Google Patents
Compression sensor gasket and method of construction Download PDFInfo
- Publication number
- WO2010040042A2 WO2010040042A2 PCT/US2009/059361 US2009059361W WO2010040042A2 WO 2010040042 A2 WO2010040042 A2 WO 2010040042A2 US 2009059361 W US2009059361 W US 2009059361W WO 2010040042 A2 WO2010040042 A2 WO 2010040042A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gasket
- pressure sensor
- housing
- annular
- passage
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
Definitions
- This invention relates generally to internal combustion engines, and moie particularly to compression gaskets for forming a seal about a chamber within an internal combustion engine.
- a compression sensor gasket includes a gasket body having opposite substantial 1) planar sealing surfaces and a through passage configuied to align with a chamber to be sealed A through opening extends between the sealing surfaces to the through passage, w ith the through opening having an annular chamfered surface
- the gasket further includes a piessui e sensor assembly having a housing and a pressure sensor extending at least partially thiough the housing
- the pressure sensor has a pressure sensor tip configured to sense pressuie within the chamber to be sealed
- the housing has an outer annular tapered surface configured to register in radial alignment with the chamfered surface to facilitate forming a hermetic seal between the pressure sensor assembly and the gasket body
- the pressure sensor assembly has one of a male or female threaded portion and the gasket body has the other of the male oi female threaded portion, wherein the male threaded portion is configured foi threaded engagement with the female threaded portion to attach the gasket body to the piessure sensoi assembly
- the housing is configuied tor compressed, mechanical sealing engagement with the gasket body
- the housing is configured foi compressed engagement with the sensor upon compressing the housing into engagement with the gasket body
- the gasket body has a chamfered inner surface and the housing has a tapered outer surface configuied to deflect radially inwardly upon engagement with the chamfered outer surface
- a method of constructing a pressure sensor gasket for sensing pressure within a cavity of an internal combustion engine includes providing a gasket body having opposite substantially planar sealing sui faces and a through passage configured to align with a chambei to be sealed with a thiough opening extending between the sealing surfaces to the through passage. The method further includes providing a sensor assembly extending to a sensor tip ai ranged adjacent the through passage and disposing the pressure sensor assembly in the through opening. 1 hen, the method includes forming a mechanical compression seal between the through opening and the pressure sensor assembly to prevent fluid from passing between the gasket body and the pressure sensor assembly.
- the method further includes providing the pressure sensor assembly with an outer housing and a pressure sensor extending axially through the housing and compressing the housing into sealed abutment with the pressure sensor.
- the method further includes maintaining the pressure sensor assembly out of direct contact with the gasket body.
- Figure 1 is a partial perspective view of a compression sensor gasket assembly constructed in accordance with one presently preferred aspect of the invention
- Figure 2 is cross-sectional view taken generally along the line 2-2 of Figure 1
- Figure 3 is a partial cross-sectional view of a compression sensor gasket assembly constructed in accordance with another presently preferred aspect of the invention.
- Figure 1 illustrates a portion of a compression sensor gasket assembly, referred to hereafter as gasket 10, constructed in accordance with one presently preferred embodiment of the invention.
- the gasket 10 has a metal distance layer, also referred to hereafter as a gasket body 12, with one or more through passages 14 for the passage of fluid or gas therethrough, such for a cylinder head gasket, for example.
- the number of passages 14 is provided to correspond with the number of cylinders in an internal combustion engine, and to provide for fluid passages, such as oil or coolant, for example.
- the gasket 10 also has at least one pressuie sensoi assembly 16, and preferably a corresponding number of pressure sensor assemblies to the number ol through passages 14 releasably attached m fluid/gas tight sealed engagement with the gasket body 12
- the pressure sensor assemblies 16 are configured to sense pressure independently hom one another within their respective through passage 14 and withm the chamber being sealed
- the gasket 10 can be removed from between the members being clamped and sealed together, whereupon the pressure sensor assemblies 16 can be selectively and independently removed from the gasket body 12 and replaced independent of the gasket body 12, if desned [00018]
- the gasket body 12 can be provided as a substantially flat body, having opposite sides providing substantially planar sealing surfaces 18, 20, while sealing beads (not shown) can be formed to extend throughout the body 12, as desired
- each through opening 24 has a tapped, female thread portion 28 formed in the cylindrical wall 25 adjacent the outer pe ⁇ pheiy 26 [00020]
- the pressure sensor assembly 16 has a housing 30 configuied toi compiessed fluid/gas tight sealed engagement within the thiough opening 24 of the gasket body 12 and a pressure sensor 32 configured for fluid/gas tight sealed engagement withm in the housing 30 [00021]
- the pressure sensor 32 is sealingly fixed in the through opening 24 of the gasket body 12.
- the pressure sensor 32 can be provided of any suitable type of material, such as a fiber optic, for example.
- the pressure sensor 32 is represented as having a body with a cylindrical or substantially cylindrical outer surface 33 sized for receipt within the housing 30.
- the outer surface 33 of the pressure sensor 32 extends axially through the housing 30 and is shown as having a sensor tip 35 positioned flush or substantially flush with a free end 37 of the housing 30.
- the pressure sensor 32 Upon being fixed in the through opening 24 of the gasket body 12, the pressure sensor 32 is suitably position adjacent the through passage 14 to detect pressure within the chamber being sealed.
- the housing 30 has a central through passage 34 and an outer surface 39.
- the through passage 34 is represented here, by way of example and without limitation, as being cylindrical or substantially cylindrical and sized for close or slightly tight receipt of the outer surface 33 of the sensor 32 therein.
- the outer surface 39 has a portion configured for threaded attachment with the female thread portion 28 in the through opening 24 of the gasket body 12, represented as a male threaded portion 36 located axially between a tool receiving head 38 and the free end 37.
- the head 38 is preferably configured, such as having a hex shaped outer configuration, for example, for receipt of a tool to facilitate tightening and loosening the sensor 32 in the through opening 24.
- the outer surface 39 also has a cylindrical or substantially cylindrical portion 41 extending between the male threaded portion 36 and the free end 37.
- the portion 41 has a slightly reduced diameter from the cylindrical wall 25 of the through opening 24, thereby providing an annular gap 43 between the outer surface 39 and the cylindrical wall 25 upon assembly.
- the cylindrical portion 41 transitions to an annular tapered nose 40 adjacent or immediately adjacent the free end 37, wherein the tapered nose 40 is shown as extending and converging flush or substantially flush with the free end 37.
- the tapered nose 40 has an annularly tapered, conical surface 45 configured to matingly abut the annular chamfered surface 29 of the gasket body 12 in fluid/gas tight sealed relation therewith. While fastening the pressure sensor assembly 16 within the through opening 24, the housing 30 is caused to move axially within the through opening 24 while the annular gap 43 permits the nose 40 to be guided in freely centered relation within the annular conical surface 29 and compressed into cammed, mating abutment with the radially aligned conical surface 29 of the gasket body 12.
- the nose 40 is caused to be biased and/or deformed radially inwardly to bring a region 47 of the through passage 34 that is radially aligned with the tapered surface 45 into compressed fluid/gas tight sealed engagement with the outer surface 33 of the centrally extending pressure sensor 32.
- the mechanically formed seals established between the radially aligned abutting annular tapered surfaces 29, 45 and between the radially aligned inner surface of the through passage 34 and the outer surface 33 of the pressure sensor 32 form a hermetic seal between the pressure sensor assembly 16 and the chamber, e.g. combustion chamber, being sealed. Accordingly, no fluid or gas is able to escape through the through opening 24 in the gasket body 12 or through the through passage 34 in the housing 30.
- the housing 30 can be formed from a material relatively soft in comparison to the material used to construct the gasket body 12, such as from brass, for example.
- the softer material of the housing nose 40 is able to be readily deflected and/or deformed radially inwardly into hermetically sealed abutment with the outer surface 33 of the sensor 32 while the housing 30 is being moved axially within the through opening 24. Accordingly, the hermetic seal established via mechanical compression between the housing 30 and the gasket body 12, and between the housing 30 and the pressure sensor 32 negate the need for supplemental and potentially costly sealing mechanisms.
- FIG 3 a cross-sectional view taken generally along a plane of a compression sensor gasket assembly, referred to hereafter as gasket 110, constructed in accordance with another aspect of the invention is shown, wherein the same reference numerals offset by a factor of 100 are used to identify similar features described above.
- the gasket 1 10 has a gasket body 112 constructed similarly as described above, having one or more through passages 114 for the flow of gas or fluid. Further, the gasket body 1 12 has an enclosed or substantially enclosed through opening 124 constructed having a cylindrical or substantially cylindrical inner wall 125 extending between an outer periphery 126 and an inner periphery 122.
- An annular tapered or chamfered surface is formed adjacent the outer periphery 126 of the gasket body 1 12, shown as diverging outwardly from the inner wall 125 into flush or substantially flush relation with the outer periphery 126, for example.
- the outer periphery 126 has fastener openings, represented as threaded openings 52, extending into the outer periphery 126 on opposite sides of the through opening 124.
- the pressure sensor assembly 1 16 has a pressure sensor 132 received in a pressure sensor housing 130, with the pressure sensor 132 extending to a pressure sensor tip 135 at one end for orientation adjacent the respective gas or fluid through passage 1 14.
- the pressure sensor assembly 1 16 has a generally cylindrical outer surface 133 sized for receipt, such as in a slightly loose fit, in the through opening 124, thereby providing an annular gap 143 between the outer surface 133 of the pressure sensor housing 130 and the inner wall 125 of the through opening 124.
- the pressure sensor assembly 116 has a fastening portion including a conical, annularly tapered rear surface 54 converging away from the pressure sensor tip 135 and a male threaded stud 56 extending coaxially from the tapered rear surface 54 to an end opposite the pressure sensor tip 135.
- the tapered rear surface 54 is configured to register in radial alignment with the chamfered surface 50 to form an annular V-shaped recess 57 between the surfaces 50, 54 to facilitate forming a hermetic seal between the pressure sensor assembly 116 and the gasket body 112.
- the gasket 110 further includes a sealing mount plate, referred to hereafter as mount plate 58.
- the mount plate 58 is constructed of metal, and preferably a soft metal, e.g. brass, for example.
- the mount plate 58 has an annular central through passage 59 sized for a clearance fit of the sensor threaded stud 56 therethrough.
- the mount plate 58 further includes a pair of laterally extending mount flanges 60 configured for flush or substantially flush abutment with the outer periphery 126 of the gasket body 112.
- the mount flanges 60 have through openings 62 configured for alignment with the threaded openings 52 in the gasket body 1 12.
- the mount plate 58 has an annular, wedge-shaped boss or peak 64 extending axially outwardly from the through passage 59.
- the angles of inclination of surfaces forming the wedge-shaped peak 64 are predetermined for receipt in the V-shaped recess 57 to provide a snug, tight mating fit of the peak 64 within the V-shaped recess 57 established between the tapered rear portion 54 of the pressure sensor housing 130 and the countersink 50 in the gasket body 112.
- the pressure sensor housing 130 with the pressure sensor 132 received therein is disposed in a clearance fit in the through opening 124 with the sensor tip 135 facing and being configured generally flush with the through passage 114 of the gasket body 112. Accordingly, the pressure sensor housing 130 is maintained out of direct contact with the gasket body 112.
- the threaded stud 56 of the pressure sensor assembly 116 extends outwardly from the outer periphery 126 of the gasket body 112. With the pressure sensor and housing 130 in position, the mount plate 58 is then positioned over the threaded stud 56 with the threaded stud 56 extending through the through passage 59 and outwardly from the mount plate 58.
- a pair of fasteners e.g. threaded bolts 68
- a pair of fasteners e.g. threaded bolts 68
- threaded bolts 68 are disposed through the through openings 62 and fastened in the threaded openings 52 of the gasket body 112.
- a threaded nut 70 is secured to the threaded stud 56 and tightened to a predetermined torque, thus pulling the stud 56 axially rearwardly and the annular, tapered rear portion 54 of the pressure sensor housing 130 into fluid/gas tight sealed abutment with a radially inwardly facing annular tapered surface 74 of the annular peak 64.
- the tapered peak 64 of the mount plate 58 provides a mechanically formed hermetic seal against both the gasket body 112 and the pressure sensor housing 130. Further facilitating the formation of a hermetic seal is brought about by the peak 64 being formed of a relative soft material and thus, allowing the peak 64 to deform as needed to ensure a fluid/gas tight seal is established.
- the pressure sensor assemblies 16, 1 16 are hermetically sealed within the respective gasket body 12, 112 without the need to incorporate costly seal mechanisms. Further, any of the individual components of the gaskets 10, 110 can be replaced in service or in manufacture without having to replace other components, thereby reducing cost in service and in manufacture. Accordingly, the pressure sensors may be replaced in service, while the gasket bodies 12, 112 can remain in use, if desired. [00028] Obviously, many modifications and va ⁇ ations of the present invention are possible in light of the above teachings It is, therefore, to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09818559A EP2331852A2 (en) | 2008-10-03 | 2009-10-02 | Compression sensor gasket and method of construction |
JP2011530265A JP5547201B2 (en) | 2008-10-03 | 2009-10-02 | Compression sensor gasket and construction method |
CN200980146891.9A CN102224363B (en) | 2008-10-03 | 2009-10-02 | Compression sensor gasket and method of construction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10238008P | 2008-10-03 | 2008-10-03 | |
US61/102,380 | 2008-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010040042A2 true WO2010040042A2 (en) | 2010-04-08 |
WO2010040042A3 WO2010040042A3 (en) | 2010-06-03 |
Family
ID=42074230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/059361 WO2010040042A2 (en) | 2008-10-03 | 2009-10-02 | Compression sensor gasket and method of construction |
Country Status (6)
Country | Link |
---|---|
US (1) | US8375800B2 (en) |
EP (1) | EP2331852A2 (en) |
JP (1) | JP5547201B2 (en) |
KR (1) | KR20110079811A (en) |
CN (1) | CN102224363B (en) |
WO (1) | WO2010040042A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012045064A1 (en) * | 2010-10-01 | 2012-04-05 | Federal-Mogul Corporation | Compression sensor gasket assembly and method of servicing a combustion pressure sensor within a gasket assembly |
WO2012119142A1 (en) * | 2011-03-03 | 2012-09-07 | Federal-Mogul Corporation | Compression sensor gasket assembly |
JP2012202363A (en) * | 2011-03-28 | 2012-10-22 | Kubota Corp | Exhaust treating device of diesel engine |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8747582B2 (en) * | 2008-09-05 | 2014-06-10 | Federal-Mogul Powertrain, Inc. | Self-wrapping textile sleeve with protective coating and method of construction thereof |
US8371156B2 (en) * | 2009-06-01 | 2013-02-12 | Federal-Mogul Corporation | Compression sensor gasket assembly and method of construction |
EP2553249A2 (en) * | 2010-03-31 | 2013-02-06 | Federal-Mogul Corporation | Cylinder head compression sensor gasket assembly, method of construction thereof and method of servicing a pressure sensor assembly in a cylinder head compression sensor gasket assembly |
WO2012131788A1 (en) * | 2011-03-31 | 2012-10-04 | シチズンファインテックミヨタ株式会社 | Cylinder internal-pressure sensor for engine |
US20130042674A1 (en) * | 2011-08-17 | 2013-02-21 | David M. Toth | Compression sensor gasket assembly and method of construction thereof |
US10107700B2 (en) * | 2014-03-24 | 2018-10-23 | Rosemount Inc. | Process variable transmitter with process variable sensor carried by process gasket |
DE102017113838A1 (en) * | 2017-06-22 | 2018-12-27 | Man Diesel & Turbo Se | Internal combustion engine |
DK3588043T3 (en) * | 2018-06-28 | 2020-08-31 | Ovh | FLUID CIRCUIT MONITORING SYSTEM |
CN113464651B (en) * | 2021-08-03 | 2023-11-03 | 中国航发湖南动力机械研究所 | Differential pressure sensor combined sealing structure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5659132A (en) * | 1995-03-07 | 1997-08-19 | Fel-Pro Incorporated | Gasket enclosed sensor system |
JP2002349336A (en) * | 2001-05-23 | 2002-12-04 | Toyota Motor Corp | Cylinder inner pressure detection device of internal combustion engine |
US6945117B2 (en) * | 2003-08-29 | 2005-09-20 | Dana Corporation | Gasket having a fiber-optic pressure sensor assembly |
US7004472B2 (en) * | 2003-07-08 | 2006-02-28 | Elringklinger Ag | Cylinder head gasket |
US7096725B2 (en) * | 2004-11-08 | 2006-08-29 | Federal-Mogul World Wide, Inc. | Cylinder head gasket with integrated sensor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3952691A (en) * | 1975-01-06 | 1976-04-27 | Gte Sylvania Incorporated | Fluid pressure sensor device |
JPS6160137U (en) * | 1984-09-26 | 1986-04-23 | ||
CA2476095A1 (en) * | 2002-02-15 | 2003-08-28 | Dana Corporation | Multiple-layer cylinder head gasket with integral pressure sensor apparatus for measuring pressures within engine cylinders |
US6701775B1 (en) * | 2002-02-15 | 2004-03-09 | Dana Corporation | Pressure sensor apparatus for measuring pressures including knock conditions in engine cylinders |
BR0307732A (en) * | 2002-02-15 | 2005-04-26 | Dana Corp | Combustion Pressure Sensor and Gasketing Method |
SE527981C2 (en) * | 2004-06-04 | 2006-07-25 | Alfa Laval Corp Ab | Method and apparatus for assessing the risk of fluid leakage in a heat exchanger with sensor |
-
2009
- 2009-10-02 KR KR1020117008480A patent/KR20110079811A/en not_active Application Discontinuation
- 2009-10-02 JP JP2011530265A patent/JP5547201B2/en not_active Expired - Fee Related
- 2009-10-02 WO PCT/US2009/059361 patent/WO2010040042A2/en active Application Filing
- 2009-10-02 US US12/572,366 patent/US8375800B2/en not_active Expired - Fee Related
- 2009-10-02 CN CN200980146891.9A patent/CN102224363B/en not_active Expired - Fee Related
- 2009-10-02 EP EP09818559A patent/EP2331852A2/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5659132A (en) * | 1995-03-07 | 1997-08-19 | Fel-Pro Incorporated | Gasket enclosed sensor system |
JP2002349336A (en) * | 2001-05-23 | 2002-12-04 | Toyota Motor Corp | Cylinder inner pressure detection device of internal combustion engine |
US7004472B2 (en) * | 2003-07-08 | 2006-02-28 | Elringklinger Ag | Cylinder head gasket |
US6945117B2 (en) * | 2003-08-29 | 2005-09-20 | Dana Corporation | Gasket having a fiber-optic pressure sensor assembly |
US7096725B2 (en) * | 2004-11-08 | 2006-08-29 | Federal-Mogul World Wide, Inc. | Cylinder head gasket with integrated sensor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012045064A1 (en) * | 2010-10-01 | 2012-04-05 | Federal-Mogul Corporation | Compression sensor gasket assembly and method of servicing a combustion pressure sensor within a gasket assembly |
WO2012119142A1 (en) * | 2011-03-03 | 2012-09-07 | Federal-Mogul Corporation | Compression sensor gasket assembly |
JP2012202363A (en) * | 2011-03-28 | 2012-10-22 | Kubota Corp | Exhaust treating device of diesel engine |
Also Published As
Publication number | Publication date |
---|---|
US20100083740A1 (en) | 2010-04-08 |
CN102224363B (en) | 2014-04-30 |
KR20110079811A (en) | 2011-07-08 |
JP2012504729A (en) | 2012-02-23 |
WO2010040042A3 (en) | 2010-06-03 |
EP2331852A2 (en) | 2011-06-15 |
CN102224363A (en) | 2011-10-19 |
US8375800B2 (en) | 2013-02-19 |
JP5547201B2 (en) | 2014-07-09 |
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